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发明名称
Precision frequency control
摘要
申请公布号
US3089992(A)
申请公布日期
1963.05.14
申请号
US19600027734
申请日期
1960.05.09
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
SENEY JOHN SEYMOUR
分类号
H02M5/44
主分类号
H02M5/44
代理机构
代理人
主权项
地址
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